Tripod mount, tripod mount unit, and optical device

Abstract

To provide a tripod mount that prevents an unintentional release of a drop prevention mechanism when carrying a lens barrel by holding the tripod mount.SOLUTION: A tripod mount 20 is detachably attachable to a tripod mount base 13 that can be fixed to a lens barrel 100. The tripod mount 20 includes: a tripod mount body 21 that contacts the tripod mount base 13 and has a slit 21B; a tripod mount lock knob 22 that is screwed into the tripod mount body 21 and can fix the tripod mount 20 to the tripod mount base 13 by deforming the tripod mount body 21 so as to change the width of the slit 21B; and a tripod mount provisional lock release button 23 that is fitted into the tripod mount body 21 and can provisionally fix the tripod mount 20 to the tripod mount base 13 to prevent it from falling off. The tripod mount lock knob 22 and the tripod mount provisional lock release button 23 are arranged to advance / retract in a direction intersecting the slit 21B.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a tripod mount, a tripod mount unit, and an optical device. [Background technology]

[0002] When a tripod or monopod is attached to the tripod mount of the lens barrel, the center of gravity of the camera system is balanced. This allows for more stable shooting than when using a tripod mount attached to the camera. However, attaching a tripod mount to the lens barrel increases the mass of the lens barrel and can reduce mobility, so a detachable tripod mount has been proposed that allows the tripod mount to be removed for handheld shooting.

[0003] Patent Document 1 discloses a tripod mount equipped with a locking plate as a fall-off prevention member. A protrusion on the locking plate fits into and engages with a hole provided in a ring member, locking the lens barrel body so that it does not accidentally come off from the base. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2003-337275 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the configuration of Patent Document 1, when the base is attached to the ring member and the fixing screw is not tightened, when the lens barrel is carried by holding the base, the locking plate may be pressed down with a finger, releasing the mechanism preventing the ring member from falling off, causing it to fall off from the base.

[0006] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a tripod mount whose fall-off prevention mechanism is not inadvertently released when the lens barrel is carried by holding the tripod mount. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the present invention provides a tripod seat that is detachable from a base member that can be fixed to an optical device, the tripod seat comprising: a main body portion that abuts against the base member and has a slit portion; a first operating member that screws into the main body portion and is capable of fixing the tripod seat to the base member by deforming the main body portion so as to change the width of the slit portion; and a second operating member that fits into the main body portion and is capable of temporarily fixing the tripod seat so as to prevent it from falling off the base member, the first operating member and the second operating member being arranged to advance and retreat in a direction that intersects with the slit portion. Effect of the Invention

[0008] According to the present invention, it is possible to provide a tripod mount whose fall-off prevention mechanism is not inadvertently released when carrying the lens barrel by holding the tripod mount. [Brief description of the drawings]

[0009] [Figure 1] 2 is a diagram showing a state in which a tripod mount 20 is attached to a lens barrel 100 in the embodiment. FIG. [Diagram 2] 2A to 2C are diagrams showing a tripod mount unit 200 in an embodiment. [Diagram 3] 2 is a perspective view showing how the tripod mount 20 is attached to the tripod mount base 13. FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] 8 is a cross-sectional view taken along the line VIII-VIII in FIG. 5. [Figure 9] FIG. 6 is a cross-sectional view taken along line IX-IX in FIG. 5. [Figure 10] 3 is a cross-sectional view taken along line XX in FIG. 2. [Figure 11] 10 is a cross-sectional view taken along the cross-sectional line XI-XI in FIG. 5 when the temporary lock is released. [Figure 12] 1 is a cross-sectional view taken along the cross-sectional line XII-XII in FIG. 2 when the temporary lock is released. [Figure 13] 10 is a cross-sectional view taken along line XIII-XIII in FIG. 5, in which deformation caused by the tripod mount lock knob 22 is exaggerated. [Figure 14] FIG. 14 is an enlarged view of a range D in FIG. [Figure 15] FIG. 14 is an enlarged view of a range E in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. First, the overall configuration of a tripod mount unit 200 mounted on a lens barrel 100 (optical device) in an embodiment of the present invention will be described with reference to Figs. 1 to 3. Fig. 1 is a view of the lens barrel 100 to which the tripod mount 20 in this embodiment is mounted via a lens barrel support portion 10, as viewed from a direction perpendicular to the optical axis OA (sideways). Fig. 2 is a view showing the tripod mount unit 200 in this embodiment. Fig. 3 is a perspective view showing the mounting of the tripod mount 20 to a tripod mount base 13 (base member).

[0011] The tripod mount unit 200 is made up of a lens barrel support section 10 and a tripod mount 20. The lens barrel support section 10 is made up of a tripod mount ring 11 (annular member), a tripod mount ring lock knob 12, and a tripod mount base 13.

[0012] The tripod seat ring 11 is supported rotatably around the optical axis OA with respect to a fixed part (not shown). The tripod seat ring lock knob 12 has a function of restricting the rotation of the tripod seat ring 11 with respect to a fixed part (not shown). The tripod seat ring lock knob 12 is screwed to the tripod seat ring 11. When the tripod seat ring lock knob 12 is screwed, the tip of the tripod seat ring lock knob 12 comes into contact with a fixed member (not shown). An axial force due to the screwing acts on the contact part. A frictional force is generated at the contact part due to the axial force. Furthermore, the axial force due to the screwing makes the tripod seat ring 11 eccentric with respect to the fixed member (not shown), generating a frictional force at the radial fitting part between the fixed member (not shown) and the tripod seat ring 11. The rotation of the tripod seat ring 11 can be restricted by these frictional forces. Furthermore, the tripod seat base 13 is fixed to the tripod seat ring 11 with a locking screw 14. The tripod mount base 13 can be fixed to the lens barrel 100 by screwing the tripod mount ring lock knob 12. A tripod mount 20 is detachably attached to the tripod mount base 13. The tripod mount 20 is equipped with a tripod mount lock knob 22 (first operating member) and a tripod mount temporary lock release button 23 (second operating member) as operating parts. The function and movement of the operating parts will be described later.

[0013] As shown in Fig. 3, the tripod mount 20 can be attached to the tripod mount base 13 by sliding it in the direction of the arrow A, that is, from the object side. As shown in Fig. 2, a dovetail groove 21A is provided in the tripod mount main body 21 (main body portion) of the tripod mount 20, and a dovetail groove 13A that fits into the dovetail groove 21A is provided in the tripod mount base 13. A locking mechanism that fixes the dovetail groove 21A to the dovetail 13A will be described later.

[0014] Next, the configuration of the tripod mount 20 will be described with reference to Fig. 4 to Fig. 8. Fig. 4 is an exploded perspective view of the tripod mount 20. Fig. 5 is a side view of the tripod mount 20. Fig. 6 is a plan view of the tripod mount 20. Fig. 7 is a bottom view of the tripod mount 20. Fig. 8 is a cross-sectional view taken along the section line VIII-VIII in Fig. 5.

[0015] 7, the bottom surface of the tripod mount 20 is provided with a 1 / 4 inch camera tripod screw 29, a 3 / 8 inch camera tripod screw 30, and a video boss hole 31. The functions are the same as in the conventional case, so a description of the functions will be omitted.

[0016] (locking mechanism) Next, the locking mechanism of the tripod mount 20 will be described. The tripod mount body 21 is provided with a slit 21B (slit portion) that extends in a direction along the optical axis of the lens barrel 100. The tripod mount body 21 is divided into two parts, a left tripod mount body 21J on the other side as viewed from the image surface side, and a right tripod mount body 21K on one side as viewed from the image surface side, with the slit 21B as the center. The left tripod mount body 21J and the right tripod mount body 21K each have a shape that is easily elastically deformed in a direction approximately perpendicular to (intersecting with) the slit 21B with respect to the base portion 21L. The tripod mount body 21 abuts against the tripod mount base 13.

[0017] The tripod mount lock knob 22 is disposed so as to advance and retreat in a direction substantially perpendicular (intersecting) to the slit 21B of the tripod mount body 21. The tripod mount lock knob 22 abuts against the left tripod mount body 21J via a washer 24. The tripod mount lock knob 22 has a screw portion 22A at its tip, which is screwed into a screw portion 21C provided on the right tripod mount body 21K.

[0018] With this configuration, when the tripod mount lock knob 22 is rotated in the tightening direction, the screw portion 22A screws into the right tripod mount body 21K. Then, the width of the slit 21B is deformed based on the base portion 21L so that the distance between the left tripod mount body 21J and the right tripod mount body 21K becomes closer. Therefore, the spacing of the dovetail groove 21A in the direction approximately perpendicular to the slit 21B becomes narrower. When the dovetail groove 21A is engaged with the dovetail groove 21A and the tripod mount lock knob 22 is tightened, the dovetail groove 21A comes into contact with the dovetail groove 21A, and the frictional force generated between these parts can fix the tripod mount body 21 to the tripod mount base 13.

[0019] 8, the tripod mount lock knob 22 is provided with a locking mechanical end 22B and an unlocking mechanical end 22C, which are restricting sections, on the tightening and loosening direction sides, respectively. In the tightening direction, the locking mechanical end 22B abuts against a restricting section 21D of the tripod mount main body 21, which is the mating part, and the movement of the tripod mount lock knob 22 is restricted so that it cannot be tightened any further. In the loosening direction, the unlocking mechanical end 22C abuts against a retaining screw 25, which is the mating part, and the movement of the tripod mount lock knob 22 is restricted so that it cannot be loosened any further.

[0020] The reason why the unlocking side mechanical end 22C is provided on the loosening direction side is to suppress the deformation amount of the tripod mount main body 21 and to keep it within the elastic deformation range as a material characteristic. Keeping the deformation amount within the elastic deformation range leads to improved durability. The material of the tripod mount main body 21 considered here is an aluminum alloy. Note that other materials may be used, but as in this embodiment, it is necessary to set the stroke (mechanical end stroke) of the tripod mount lock knob 22 taking into account the material characteristics. Another reason why the unlocking side mechanical end 22C is provided on the loosening direction side is to prevent the screw connection part of the tripod mount lock knob 22 from coming off the tripod mount main body 21. Also, in order to shorten the time from the fully loosened state to the tightening state, the stroke is not unnecessarily long, and the mechanical end is set at an appropriate stroke taking into account the quality of the parts, etc. The unlocking side mechanical end 22C on the loosening direction side is provided on the right tripod mount main body 21K where the tripod mount main body 21 and the tripod mount lock knob 22 are screwed together. Therefore, even if the unlocking side mechanical end 22C comes into contact with the locking screw 25 in the loosening direction and further loosening force is applied, the width of the dovetail groove 21A does not increase. Therefore, there is no risk of plastic deformation of the tripod base body 21.

[0021] (About the temporary lock mechanism) Next, the configuration of the temporary locking mechanism will be described with reference to Fig. 9 to Fig. 12. Fig. 9 is a cross-sectional view taken along line IX-IX in Fig. 5. Fig. 10 is a cross-sectional view taken along line XX in Fig. 2. Fig. 11 is a cross-sectional view taken along line XI-XI in Fig. 5 when the temporary lock is released. Fig. 12 is a cross-sectional view taken along line XII-XII in Fig. 2 when the temporary lock is released.

[0022] First, the temporary lock mechanism will be described. As shown in FIG. 3, the tripod mount 20 is slid in the direction of the arrow A to mount the tripod mount 20 on the tripod mount base 13. The movement of the tripod mount temporary lock release button 23 at this time is shown by the broken line in FIG. 10. The temporary lock shaft screw 28 (projection) provided on the tripod mount temporary lock release button 23 engages with the guide groove 13B (groove) provided on the tripod mount base 13, and the temporary lock shaft screw 28 moves in the direction of the arrow A while being displaced in the opposite direction to the direction of the arrow B. Then, when the tripod mount 20 is slid in the direction of the arrow A to the vicinity of the end of the tripod mount base 13 so that the dovetail groove 13A fits into the dovetail groove 21A, the temporary lock shaft screw 28 is guided by the guide groove 13B, and then moves in the direction of the arrow B and fits into the retaining groove 13C. This state is a temporary lock state in which the tripod mount base 13 and the tripod mount 20 are temporarily fixed. The temporary lock mechanism is a so-called fall-off prevention mechanism, and is composed of the temporary lock shaft screw 28, the guide groove 13B, and the retaining groove 13C. In this way, the tripod mount temporary lock release button 23 fits into the tripod mount main body 21, and enables the tripod mount 20 to be temporarily fixed so that it does not fall off from the tripod mount base 13.

[0023] Next, a mechanism for releasing the temporary lock state will be described. As shown in Fig. 9, the tripod mount temporary lock release button 23 is arranged so as to move forward and backward in a direction approximately perpendicular to the slit 21B of the tripod mount main body 21. The tripod mount temporary lock release button 23 is biased by a compression spring 26 in the direction of the arrow B, which is approximately perpendicular to the slit 21B. The tripod mount temporary lock release button 23 is engaged with the compression spring 26 at a spring engagement part 23E provided at the tip of the tripod mount temporary lock release button 23 so that the spring bias force is always applied in the direction of the arrow B. For example, when the button part 23A (operation part) is pressed with a finger, the tripod mount temporary lock release button 23 moves in the opposite direction of the arrow B against the spring bias force, and when the finger is released from the button part 23A, it moves in the direction of the arrow B due to the spring bias force.

[0024] The tripod mount temporary lock release button 23 is provided with a guide shaft screw 27, which is guided by a guide groove 21G (see FIG. 7) provided in the tripod mount main body 21 in a direction substantially perpendicular to the slit 21B. Furthermore, the guide shaft screw 27 fits into the guide groove 21G, thereby restricting rotation of the tripod mount temporary lock release button 23. Also, the knob portion 22D (operation portion) of the tripod mount lock knob 22 and the button portion 23A of the tripod mount temporary lock release button 23 are located on the same side when viewed from a direction perpendicular to the slit 21B.

[0025] The tripod mount temporary lock release button 23 has two fitting parts. The tripod mount temporary lock release button 23 is provided with a radial fitting part 23C (second fitting part) that fits with the radial fitting part 21F (second region) of the left tripod mount main body 21J, and a radial fitting part 23B (first fitting part) that fits with the radial fitting part 21E (first region) of the right tripod mount main body 21K. The fitting part in this embodiment is a radial fitting part that is easy to process, but this is only one example and the shape is not limited. For example, a square shaft and a square hole may be used. It is also possible to provide multiple shaft screws and grooves and fit them. In this embodiment, the shape of the fitting part is similar to a semi-cylindrical shape (a shape close to a semi-cylindrical shape), but this is only one example and the shape is not limited. Basically, by shortening the length of the fitting portion of the tripod base temporary lock release button 23 in the direction approximately perpendicular to the slit 21B, it becomes difficult for the fitting portion to be twisted when the tripod base main body 21, which will be described later, is deformed. And, at least one of the tripod base main body 21 and the tripod base temporary lock release button 23 between the radial fitting portion 23B and the radial fitting portion 23C, or between the radial fitting portion 21E and the radial fitting portion 21F, is provided with a small diameter portion 23D (a concave step).

[0026] The following restricting portion (mechanical end) is provided on the tripod mount main body 21 to restrict movement of the tripod mount temporary lock release button 23. As shown in FIG. 9, a temporary lock mechanical end 21H is formed on the end face of the left tripod mount main body 21J on the side in the direction of the arrow B. The temporary lock mechanical end 21H abuts against the guide shaft screw 27, restricting movement of the tripod mount temporary lock release button 23. As shown in FIG. 11, a temporary lock release mechanical end 21I is formed on the end face of the left tripod mount main body 21J on the side in the direction of the arrow C. The temporary lock release mechanical end 21I of the tripod mount main body 21 abuts against the mechanical end 23F of the tripod mount temporary lock release button 23, restricting movement of the tripod mount temporary lock release button 23.

[0027] To release the temporary lock, push button portion 23A in the direction of arrow C against the spring force of compression spring 26 to move tripod mount temporary lock release button 23 as shown in Figure 12, and remove temporary lock shaft screw 28 from retaining groove 13C. In this state, the temporary lock is released, so tripod mount 20 can be slid in the opposite direction of arrow A.

[0028] In the conventional configuration, the lens barrel may be carried by holding the base without the fixing screw being fastened, and furthermore, in order to hold the lens barrel by holding the base with a firm grip, the index finger and thumb are usually held on the object side and image side of the base base, respectively. In that case, the index finger and thumb get caught on the knob (lock plate), and if the base is gripped with force while the fingers are caught on the knob, the knob is inadvertently pressed down, releasing the fall prevention mechanism, which may lead to the problem of the ring member falling off the base.

[0029] However, in the configuration of the present invention, the tripod mount temporary lock release button 23 is arranged to advance and retreat in a direction approximately perpendicular to the slit 21B, so the fall-prevention mechanism is not inadvertently released when carrying the lens barrel 100 by holding the tripod mount 20. According to the present invention, it is possible to provide a tripod mount 20 whose fall-prevention mechanism is not inadvertently released when carrying the lens barrel 100 by holding the tripod mount 20.

[0030] (Shape to avoid interference problems caused by elastic deformation) Next, a configuration for avoiding interference problems that may occur due to elastic deformation of the base portion 21L of the tripod mount main body 21 will be described with reference to Figs. 13 to 15. Fig. 13 is a cross-sectional view taken along the cross-sectional line XIII-XIII in Fig. 5, in which the deformation caused by the tripod mount lock knob 22 is exaggerated. Fig. 14 is an enlarged view of range D in Fig. 13. Fig. 15 is an enlarged view of range E in Fig. 13.

[0031] As shown in FIG. 8, in the state of the tripod mount 20 alone, the tripod mount lock knob 22 is screwed in and tightened until the lock side mechanical end 22B abuts against the restricting portion 21D of the tripod mount main body 21. Then, as shown in FIG. 13, the tripod mount main body 21 is elastically deformed (deformed in a V-shape) so that the interval of the slit 21B becomes narrower with respect to the base portion 21L of the tripod mount main body 21, and the left tripod mount main body 21J and the right tripod mount main body 21K are deformed so as to approach each other. In this embodiment, the cross-sectional view in FIG. 13 shows an exaggerated amount of deformation for easy explanation. The position of the fitting portion between the tripod mount main body 21 and the tripod mount temporary lock release button 23 also changes due to the deformation of the right tripod mount main body 21K approaching each other. For example, if the inclination amount of the right tripod mount body 21K is θ1 and the dimension from the base part 21L to the fitting part (diameter fitting part 23B) is length L1, the position of the fitting part changes by the length of L1 tan θ1. The left tripod mount body 21J is based on the same idea, and if the inclination amount of the left tripod mount body 21J is θ2 and the dimension from the base part 21L to the fitting part (diameter fitting part 23C) is length L2, the position of the fitting part changes by the length of L2 tan θ2. If the lengths of L1 tan θ1 and L2 tan θ2 are different, the amount of position change is different, so the tripod mount temporary lock release button 23 of the mating part will fit in an inclined position. In this state, the gap between the tripod mount body 21 and the tripod mount temporary lock release button 23 at the part away from the fitting part narrows due to the shape change caused by the above-mentioned deformation. 15, if the dimension from the fitting portion to the slit 21B is length L3, the gap is narrowed by the length of L3 tan θ1. Therefore, it is necessary to design a shape that allows for the deformation, taking into account the amount of narrowing of the gap due to deformation.

[0032] In this embodiment, a small diameter portion 23D is provided that is one step lower than the diameter fitting portion 23B of the tripod mount temporary lock release button 23 to allow deformation. However, this is not limited to the shape of this embodiment. For example, the shape of the mating part, the tripod mount main body 21, may be one step larger. There is also a method of setting the fitting between the diameter fitting portion 21E and the diameter fitting portion 23B so that the amount of fitting backlash is greater than the amount of narrowing of the gap, without providing a separate stepped shape.

[0033] In this way, by adopting a shape that takes into consideration the amount of narrowing of the gap due to deformation, it is possible to position the tripod mount temporary lock release button 23 in a direction that is approximately perpendicular to the slit 21B without interference between the parts. This positioning makes it possible to minimize the risk of accidentally pressing the tripod mount temporary lock release button 23 when carrying the tripod mount main body 21 by hand with the tripod mount 20 attached to the lens barrel 100.

[0034] In addition, in this embodiment, the tripod mount temporary lock release button 23 and the tripod mount lock knob 22 can be arranged adjacent to each other, making attachment and detachment easy. For example, when a camera (not shown), lens barrel 100, and tripod mount 20 are attached and the tripod is screwed onto the tripod mount 20, there may be a situation where you suddenly want to change the subject and detach the tripod mount 20 from the lens barrel 100. In that case, you can quickly detach the tripod mount 20 with only your left hand while holding the camera grip and shutter button with your right hand. This reduces the chance of missing a photo opportunity.

[0035] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist of the present invention.

[0036] The disclosure of this embodiment includes the following configuration. (Configuration 1) A tripod mount that is detachable from a base member that can be fixed to an optical device, The tripod mount is a main body portion that abuts against the base member and has a slit portion; a first operating member that is screwed into the main body and is capable of fixing the tripod mount to the base member by deforming the main body so as to change the width of the slit; a second operating member that is fitted to the main body and is capable of temporarily fixing the tripod mount so that it does not fall off the base member; The tripod mount is characterized in that the first operating member and the second operating member are arranged to advance and retreat in a direction intersecting the slit portion. (Configuration 2) The tripod mount according to configuration 1, wherein the slit portion extends in a direction along an optical axis of the optical device. (Configuration 3) The body portion is provided with a dovetail groove, The base member is provided with a dovetail that fits into the dovetail groove, The tripod mount according to configuration 1 or 2, characterized in that, in a state in which the dovetail is engaged with the dovetail groove, the tripod mount is fixed to the base member by fastening the first operating member. (Configuration 4) The base member is provided with a groove, the second operating member has a protrusion that engages with the groove, When the main body is slid onto the base member so that the dovetail is fitted into the dovetail groove, the protrusion is guided into the groove, The tripod mount according to configuration 3, wherein the protrusion fits into a retaining groove provided in the groove, thereby temporarily fixing the base member and the tripod mount. (Configuration 5) the second operating member has a first fitting portion and a second fitting portion that fit into the main body portion, the main body portion has a first region provided on one side of the main body portion divided into two by the slit portion and fitted into the first fitting portion, and a second region provided on the other side of the main body portion divided into two by the slit portion and fitted into the second fitting portion, The tripod mount according to any one of configurations 1 to 4, characterized in that a concave step is provided on at least one of the main body and the second operating member between the first fitting portion and the second fitting portion, or between the first region and the second region. (Configuration 6) The tripod mount according to any one of configurations 1 to 5, wherein the first operating member and the second operating member have their respective operating portions disposed on the same side as viewed from a direction intersecting the slit portion. (Configuration 7) 7. A tripod mount unit comprising: the tripod mount according to any one of configurations 1 to 6; a base member that is detachable from the tripod mount; and an annular member that is connected to the base member. (Configuration 8) 8. An optical device comprising the tripod mount unit according to claim 7. [Explanation of symbols]

[0037] 11 Tripod mount ring (ring part) 13 Tripod mount base (base material) 13A Ant 13B Guide groove (groove) 13C Retaining groove 20 Tripod mount 21 Tripod mount body (main body) 21A Dovetail 21B Slit (slit part) 21E Diameter fitting portion (first region) 21F Diameter fitting portion (second area) 22 Tripod mount lock knob (first operating member) 22D Knob section (operation section) 23 Tripod mount temporary lock release button (second operating member) 23A Button section (operation section) 23B Diameter fitting portion (first fitting portion) 23C Diameter fitting part (second fitting part) 23D Small diameter section (concave step) 28 Temporary locking shaft screw (projection) A Arrow direction B Arrow direction C Arrow direction 100 Lens barrel (optical device) 200 Tripod mount unit

Claims

1. A tripod mount that is detachable from a base member that can be fixed to an optical device, The tripod mount is a main body portion that abuts against the base member and has a slit portion; a first operating member that is screwed into the main body and is capable of fixing the tripod mount to the base member by deforming the main body so as to change the width of the slit; a second operating member that is fitted to the main body and is capable of temporarily fixing the tripod mount so that it does not fall off the base member; The tripod mount is characterized in that the first operating member and the second operating member are arranged to advance and retreat in a direction intersecting the slit portion.

2. 2. The tripod mount according to claim 1, wherein the slit portion extends in a direction parallel to an optical axis of the optical device.

3. The body portion is provided with a dovetail groove, The base member is provided with a dovetail that fits into the dovetail groove, 2. The tripod mount according to claim 1, wherein the tripod mount is fixed to the base member by fastening the first operating member in a state in which the dovetail is engaged with the dovetail groove.

4. The base member is provided with a groove, the second operating member has a protrusion that engages with the groove, When the main body is slid onto the base member so that the dovetail is fitted into the dovetail groove, the protrusion is guided into the groove, 4. The tripod mount according to claim 3, wherein the base member and the tripod mount are temporarily fixed together by fitting the protrusion into a retaining groove provided in the groove.

5. the second operating member has a first fitting portion and a second fitting portion that fit into the main body portion, the main body portion has a first region provided on one side of the main body portion divided into two by the slit portion and fitted into the first fitting portion, and a second region provided on the other side of the main body portion divided into two by the slit portion and fitted into the second fitting portion, 2. The tripod mount according to claim 1, wherein a concave step is provided on at least one of the main body and the second operating member between the first fitting portion and the second fitting portion, or between the first region and the second region.

6. 2. The tripod mount according to claim 1, wherein the operation portions of the first operation member and the second operation member are disposed on the same side as viewed from a direction intersecting the slit portion.

7. 7. A tripod mount unit comprising: the tripod mount according to claim 1; a base member detachable from the tripod mount; and an annular member connected to the base member.

8. 8. An optical device comprising the tripod mount unit according to claim 7.

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